Enum IsleConstructor

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enum IsleConstructor {
    RetMemorySideEffect,
    RetGpr,
    RetXmm,
    RetValueRegs,
    NoReturnSideEffect,
    ProducesFlagsSideEffect,
    ConsumesFlagsReturnsGpr,
}
Expand description

Different kinds of ISLE constructors generated for a particular instruction.

One instruction may generate a single constructor or multiple constructors. For example an instruction that writes its result to a register will generate only a single constructor. An instruction where the destination read/write operand is GprMem will generate two constructors though, one for memory and one for in registers.

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RetMemorySideEffect

This constructor only produces a side effect, meaning that the instruction does not produce results in registers. This may produce a result in memory, however.

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RetGpr

This constructor produces a Gpr value, meaning that the instruction will write its result to a single GPR register.

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RetXmm

This is similar to RetGpr, but for XMM registers.

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RetValueRegs

This “special” constructor captures multiple written-to registers (e.g. mul).

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NoReturnSideEffect

This constructor does not return any results, but produces a side effect affecting EFLAGs.

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ProducesFlagsSideEffect

This constructor produces no results, but the flags register is written, so a ProducesFlags value is returned with a side effect.

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ConsumesFlagsReturnsGpr

This instructions reads EFLAGS, and returns a single gpr, so this creates ConsumesFlags.ConsumesFlagsReturnsReg.

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impl IsleConstructor

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fn result_ty(&self) -> &'static str

Returns the result type, in ISLE, that this constructor generates.

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fn conversion_constructor(&self) -> &'static str

Returns the constructor used to convert an AssemblerOutput into the type returned by Self::result_ty.

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fn suffix(&self) -> &'static str

Returns the suffix used in the ISLE constructor name.

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fn includes_write_only_reg_mem(&self) -> bool

Returns whether this constructor will include a write-only RegMem operand as an argument to the constructor.

Memory-based ctors take an Amode, but register-based ctors don’t take the result as an argument and instead manufacture it internally.

Trait Implementations§

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impl Clone for IsleConstructor

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fn clone(&self) -> IsleConstructor

Returns a duplicate of the value. Read more
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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for IsleConstructor

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for IsleConstructor

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.